42A84NWea39 63.1895 SEWELL 010

REPORT OH GEOPHYSICAL SURVEYS SOUTH CROSSOVER IAKK GROUP II CIAIM3

SEWELL TOWNSHIP SUDBUKJ MINING DIVISION

OF

Introduction!

The following report describes the geophysical surveys completed during

the early part of 1966 on Canadian Johns-Manville Company limited claims located in

Sewell Township, Sudbury Mining Division, Province of Ontario.

Cutting and chaining of picket lines were contracted to J. Alix Company

Limited of Val d 'Or, Quebec. This work was carried out during the period June 7th

to 30th, 1965. Picket lines were out at right angles to a north - south trending

base line and were established at 900 foot intervals. Pickets were fixed every 50

feet along these offset lines by ohainage.

Magnetometer surveying was carried out over the claims by T* Cox* geophy

sical operator and fieldaan with Canadian Johns-Manville Coapany United using a

Jalander type instrument* H. MoDougall assisted during the course of this work.

Headings were recorded at 50 foot intervals along the offset lines.

Electromagnetic surveying was conducted by W. Scott, geophysical operator

and fioldman with this Coapany. J* Andrews and T. MoChrlstle assisted during the

course of this work. A Konka Mark IV horizontal loop type unit was used during the

course of this program and readings were recorded at 100 foot intervals along the

offset lines.

Supervision and interpretation of this work were the responsibility of the

writer, Regional Geologist with Canadian Johns-Manville Coapany United.

Property!

The claims surveyed are contiguous, are situated in Sewell Township and

are numbered as follows! -

S-129154 - 64 inclusive and 129166 67-68.

These fourteen claims comprise approximately 560 acres.

- 2 -

Locaion and .

The Canadian Johns-Manville claims are located in the southwest part of

Bowell Township, Sudbury Mining Division, Province of Ontario. The south boundary

of the group is situated along the Sewell - Kanogamlng Townships line with the

east sldo covering part of Deerfoot lake and the west side being located approx

imately one mil to the eant of Reaves Township.

Highway No. 101 ~ Timmins to Foleyet - is located approxiaately two

miles to the north of the north boundary of the claims. A bush road has been bill-

dozzed to tho south, by a local lumber contractor and crosses the north part of

the group. This road is suitable for travel by four-wheeled drive vehicle and

starts at Hi ph way No. 101 at a point approximately 43 miles west of Timmina*

The claims group in general is characterised by relatively low, swampy

terrain. Sizeable sections of cedar swamp occur in the lower sections while the

remainder la timbered with spruce, alders and scattered poplar. The northwest arm

of Deerfoot take covers parts of claims S-12915& and 129161. As the relief is

slightly more rugged in this southern section, same will be checked during the

1966 field so&son for bedrock exposures.

Drainage throughout this area is to the north from Deerfoot Lake* How*

ever, no creeks were noted on the South Crossover Lake Group II claims.

Previous Work t

Mnpping of tho general area was carried out by E. V. Todd for the

Ontario Department of Minos in 1923 find the results of this work are shown on Map

Ho. 33g, entitled "Groundhog River Area" on a scale of l inch equals ijr miles*

More recently, Map No. 20^6 entitled the ' Timmins * Kirkland Lake Sheet Geological

Compilation Saries" was issued by the Ontario Department of Mines. This plan covers

Sewell Township and has been drawn on a scale of l inch equals 4 miles*

- 3 -

Previous Worici (oont fd)

Canadian Johno-Manville Conpany Lledted carried out considerable expl

oration work in Sewell Township during the mid 1950 's. However, due to the incon

clusive results obtained all of the holdings were allowed to lapse. Due to renewed

interest in the ultrabasic intrualves of the area, the South Crossover Lake Group XI

and several other groups of claims wore staked and explored during the 1964 to 1966

period. Exploration work, as described in this report, was carried out on those

claims during 1965 and 1966. As far as the writer could ascertain no other assess

ment work is on record for this group.

Une Cqtt^ng and Chaining!

A base line was started from a point 5*90 feet west of the No. 2 post

of claim S-129161 and was out and chained to the north for a distance of 5*820

feet. Right-angled offset lines were established at 300 foot intervals along this

base line and were out to the east and west to the limits of the claims. Pickets

with numbered locations were established along all offset lines by ohainage. The

distances between the offset lines was established at the east and west boundaries

of the group by cutting and chaining tie lines. These lines are shown on the accom

panying plans.

Line cutting and chaining were contracted to J* Allx Coapany United

of Vfl d 'Or, Quebec and were carried out during the period June 7th to 30th, 1965*

A total of 18.33 miles of picket, base and tie lines was out and chained during

the course of this work.

The geology of Sewell Township and imediately adjacent areas was napped

by E. w. Todd for tho Ontario Department of Mines in 1923* The results of this

work are shown on Map No. 33g on a scale of l inch equals li niles, entitled

"Groundhog Fiver Area" which accompanies Ontario Department of Mines Hoport Vol.

XXXIII, Part 6, dated 1924. More recently the Department has issued Map No. 20^6

Qoneral Geology i (cont'd)

of the Geological Compilation Series - Tinwlns - Kirkland lake Shoot - on a scale

of l inch equals A miles. This plan extends to the west boundary of Sewell Town*

ship*

The following "Table of Formations" has been used in several Company

reports covering claims groups in Reeves* Penhorwood and Kenogaming Townships and

has been taken from the legend portion of the "Foleyet Sheet" of the Geological

Compilation Series*

Table of Formations

PHKCAMBKlaNProterozoic

KeweenawanAlkaline syenite - carbonatite complex

Keweenawan and Matachewan Diabase

ArcheanAcid igneous rooks - granitoid rocks, Magtaatites and hybrid

granitoid rooks*

Baslo and ultrabasic intrusives rooks - gabbro, diorite, peridotiteand pyroxenite.

Sedimentary and raetaaedinentary rooks - conglomerate, greywacke. late, etc.. gneisses, granul- ites and aqphibolites.

Iron Formation

Basic and Intermediate volcanic rocks - andesite, basalt, eto.

Iron Formation

Acid volcanic rooks - rhyolite, dacite, eto.

Iron Formation

Due to the pressure of other programsi It was impossible to carry out

a program of geological mapping on the South Crossover lake Group II claims during

1965* Needless to say the blook will be mapped during the early part of the 1966

field season. On the basis of the magnetic data, geological infornation from

, 5-

Qeneral QeofoCTi (cont'd)

claims groups in the area which have been napped by Company geologists and re

gional geology from Government naps* the South Crossover lake Group II claims

appear to be underlain by intermediate volcanic rooks which have been intruded

by diorite and/or gabbro. Further details will be discussed under the heading

"Interpretation of Magnetometer Survey".

Magnetometer surveying was conducted over the claims group by T. Cox,

geophysical operator and fieldasm with Canadian Johns-Manville Company Limited.

H. MoDougall assisted during the course of this work which was earried out

during the period February 2nd to 14th, 1966 using a Jalander type instrument.

Sensitivities or scale constants for the Jalander magnetometer are

as follows t - iScale f;l - 10 gammas per division f

j

Scale #2-30 gamaas per division ili:

Scale #3-100 gammas per division

Note that the Jalander instrument had been checked previously to jj

this survey on a base control station at Kunro Hine near Matheson, Ontario and 'i

again on Base Control Station Ho. l at the Beeves Campsite. Consequently on the \i

claims discussed in this report a relative gamma value of 1220 corresponds olose-i

ly with an absolute value of 57,599 - 15 gammas. Base control stations were

established on the claims group and given fixed values. These stations are !

identified as follows t - i

Base Control Station Ho. 2 - base line at 40*00)1 - 1830 gammas

Base Control Station No. 3 - base line at 27* 00 H - 2070 gamraaa

Base Control Station No. 4 - base line at 9* DON - 2070 gammas

-6.

(oont'd)

The locations of these stations are shown on the accompanying "Qeo-

Magnotic Contour Plans", readings were recorded on the base control stations at

least four times per day as a check on the working condition of the instrument and

to check ttie daily diurnal variation.

Stations ware spaced at 50 foot intervals along the offset lines and

a total of 1620 readings was recorded on the South Crossover Lake Group II claims

during the course of the magnetometer survey.

Electromagnetic Surveying was conducted over the group by W. Scott,

geophysical operator and fleldman with Canadian Johns-Manville Company Limited*

J. Andrews arid T. McGhristle assisted during the course of this work which was

carried out during the period February 4th to Hth, 1966. Three men were used

throughout the survey in a successful attempt to out down lost time due to break

age of the 200 foot cables.

Readings were recorded using a Honka Mark IV horizontal loop type

unit with coil spacing fixed nt 200 feet. This instrument was seroed prior to

the survey over the ultrabasic sill at the Beatty property of Canadian Johns-

Manville Company Idraited near Matheson, Ontario*

A total of 737 stations, spaced at 100 foot intervals, was recorded

during the course of this survey.

Test surveys have been completed with this unit over a graphitic lone,

a massive sulphide zone and a disseminated sulphide zone as aids in interpreting

the results obtained on unexplored claims groups. The following results were

obtained during those tests! -

-7 -

1. Mansive sulphide zone -- a strong positive riee on the in phase followed by

an intense negative with a resumption to aero or near aero when the station

was off the conductor. The out of phase component remained within - 5 of

*ero.

2. Disseminated sulphide zone similar to No. l but with lower in phase peaks*

3. Graphitic zone both the in phase and out of phase ooaponent o paralleled

one another and followed the pattern of No* l*

It should also be noted that coil spacing (should be exactly 200 feet)

and thw angle of the ooils to the horizontal (each coil should be horizontal)

play a large part in this work* Errors in one or both of the above nay cause

anomalies of sufficient magnitude to indicate the presence of a disseminated sul

phide zone* Consequently topography is an important factor in this type of

survey.

The results of the eleotroaagnetio survey are shown on the accompany

ing Electromagnetic Profile Plans on a scale of one inch equals 200 feet.

Inforpretation, of Magnetometer Suryeyt

The results of the magnetometer survey are depicted on the accompany

ing *Geo-Magnetio Contour Plan" on a scale of one inch equals 200 feet* Contour

linos of oqual magnetic intensity have been drawn at 500 gamma intervals from

1000 to 3500 gammas o Interpretation has been based upon a study of the contoured

magnetometer plan, regional geological data and both ground and aerial regional

geophysical plans*

As there is absolutely no geological data available on the South

Crossover Lnke Group II claims the basis for the interpretation has been magnetic

and geologic survey results on claims groups to the north and to the west* Con

sequently, the major portion of the property has been interpreted as being under

lain by intermediate voloanio rooks - probably highly altered andesitea* These

- 8 -

gf Jfej^lfroae. far Su,ryty i (oont'd)

formations have a trona ra l north - south strike this ie at variance to the

general west to slifihtly south of west trend of the formations in the north part

of Kenogaming Township. No doubt a aa j or fault or fold occurs to the south of

the group which has a far reaching affect as similar conditions have been noted

in the north part of Penhorwood Township* Magnetic readings over the volcanics

range in value from 900 to 2 , 500 gamma, however, the Majority fall within the

limits of 1500 to 1900 garaoas which is normal for volcanics in the area.

These formations have been intruded by snail lenticular bodies and

irregular plugs of gabbroic and/or dioritio rooks which appear conformable with

the volcanics. Magnetic readings over these intrusives range in value from 2200

to ovor 3700 gramas. These dioritio intrusives, which are pronouncedly magnetic

have been examined to the west in both Sewell and Reeves Townships during the

course of surface mapping and diamond drilling programs*

Ho structural features have been shown on the accompanying plan due

to the relatively uniform magnetic pattern over most of the claims group*

The results of the magnetometer surrey show that the property is under

lain by intermediate volcanic rooks which have been intruded by saall bodies of

basic intrusives. An no ultrabasic rooks are indicated on the claims* sane appear

of little interest for chrysotile mineralization.

of

The interpretation has been based upon a study of the electromagnetic

profile plan and all available geological and geophysical data. Results of the

survey are shown on the accompanying plan on a scale of one inch equals 200 feet*

Several weak to moderate conductors have been picked up by the electro

magnetic survey. In /ill oases the conductors are isolated to one line assuming

a general north - south strike to the formations. This will be tested by putting

In and surveying detail picket lines* This work nay Indicate a narked northeast

strike. The conductors on the South Crossover Lake Group II claims can be oate-

goriaod In three types. Tho first IB a normal but weak "crossover" of the *ln

phase" component. On the basis of other exploration work In this area these

conductors should be Indicative of disseminated sulphide mineralisation.

The second type again is normal and is characterised by a weak to

moderate "In phase" peak of either positive or negative sign with little or no

divergence or paralleling of the "out of phase" component. This indicates a low

percentage of disseminated sulphides.

The third is unusual in that the "in phase" component rises to a

series of positive peaks while the "out of phase" component diverges sharply

forming a weak negative. These zones will be tested during the 1966 field season

to deterraino whether or not same are caused by sulphide mineralisation.

Several conductors of Interest have been Indicated by the electro

magnetic survey occurring within the volcanic formationa - a few in the south part

occur along or adjacent to the interpreted intrusive contacts. In the wrlter*0

opinion conductors of all three types, as previously described, should be further

explored.

ReooBcaenotations i

Detailed geological napping followed by check and possibly additional

electromagnetic surveying and geochemical testing of conductors delineated should

be conducted during the early field season of 1966. Diamond drilling could then

be carried out lil tor in 1966 if warranted.

t Xv-

Subndttedi March 4tb, 1966. by t F. J. Evelegh.

GEO L. LEGEND Quartz diabase, diabase.

J Granite 5a, Syenite 5b, Feldspar porphyry 5o, Quartz feldspar 5d, Felsite 5e, Lamprophyre 5f.

Diorite fat Gabbro diabase -4b,

Peridotite St Dunite {Serpentinized) (Asb. o Asbestos recognized

Pyroxenite 4d.

Rhyolite fragmental lava

Andesite basalt, pillow lava 2a, Diabasic lava 2b, Spherulitic lava 2c, Fragmental lava 2d, Tuff St chert 2e, Talo-ohlorite schist 2f.

Greywacke la, Arkose Ib, Quartzite le, Argillite or shale Id, Conglomerate le, Iron formation If, Chlorite schist lg.

Carbonate rook

Magnetic Base Control Station

f**. Contour interval 500 gammas

Geological ContactG- Geological

Fault Zone M- MagneticT- Topographic

LOCATION SKETCH -J"*.

^ O C HA " V#

TOPO- SYMBOLS

Outcrop

Higher ground

Scarp

Muskeg or Swamp

Direction fn which lava flow* face, indiahrtWi-d by shape of pillows

ELECTRO-MAG SYMBOLS

Scale - 40 units * l inchConducting Zone - H -

W- Weak /10A/KA H. L. UN ir

In phase curveOut phase curveNot proper coll spacing

p---o]NPCSEast - Positive. West - Negative

WPHAR V.{.

1+—-+] Dip angle profile North St East - Positive South St Vest - Negative

Mag. Survey by " T. Cox E.M. Survey by - w. Scott

CANADIAN JOHNS-MANVILIE CO. LTD. MATNffOM MUNRO MINE O NIAKIO

LBGE.ND SHEET

PROVINCE OF OUT ft #10

SCALE 0*1*

OAAWN - PB.

TAACCO

AWWID ~ F J. S j

42AB4NW8039 63.1895 SEWELL 900

DETAILED ASSESSMSlfT RKFORT SOUTH CROSSOVER LAKE QROOP II GUZK9

3EVBLL TOWBHXP 3UDBURI HUfZMO DIVISION

o?line Cutting and Chaining l

This work wao contracted to J. Alix Ooapany United of Val d 'Or, Quebec and was carried out by the personnel listed belowl -

A. Morand - R. Morand * J* Poirier - M. Deal&uriers - H* Masse - A. Thiboutot * F. Qanelin -

line cutter -tt N

B ttB nK N

n ittt N

June t - 30/65 l* - 30/65 16 - 30/65 18 - 30/65aa - 30/65

- 23 x l-13x1- 15x1- 13x l- 3*1

7 - U/65 - * x l

Total

23 nan days1315133tg i

22*

*wRMw

i Nin days

jfeftne^qftefrer^^^,

This survey was conducted by T* Cox* geophysical operator and fieldnan with Canadian Johns-Manville Conpany United using a Jalander type nagnetoneter. H* MoDougall assisted during the course of this program. Both Cox and MoDougall reside at Matheson, Ontario*

T. Cox - curator - February 2 - U/66 - 13 x 7 * 91 "M* days H. MoDougall -assistant ~ " 2 - U/S6 -13x7* 2* " "

total nan days

Si iVI

This survey was carried out by V. Scott, geophysioal operator and fieldnan with this Company using a Ronka Mark IV Horisontal Loop type unit* J* Andrews and T. MoChristie assisted during the course of this progran* V* Scott resides in Kirkland lake while Andrews and MoChristie are fron Matheson*

W* Scott - operator - J. Andrews - assistant - T. MoChristie - assistant *

Office Workt

February . U/66-11X7- - U/66 . 11 x 7 * "" -11x7-

Total •••••*

77 nan dayt 77 * " 22 " "

day*

This work was carried out by Canadian Johns-Manrille Co* United personnel fron Munro Mine, Matheson* Ontario as shown belowl -

R. Kaltwasser - oaloulations* drafting - Ftb 23 - 25/66 - 3 x 7 * 21 nan days M. Bruce - * " Fsb 23 - 25/D6 - 3 x 7 - a nan days F. J. Eve legti - interpretation, report - Feb 2^ - 28/66 . 3 x 7 * 21 nan days M. Kvelegh - typing - Mar A/66 - l x 7 - JZ nan days

Total ******* nan day*

li I l l i M M

42A04NW8039 63.IB95 SEWELL

SOUTHGAQOP M.

DEGAFOQT

SOUTH

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42A04NV(ia039 63.1895 SEWELL

ELECTRO MR6NET)C Profits

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